JPS60160041U

JPS60160041U - Power receiving system switching control device

Info

Publication number: JPS60160041U
Application number: JP4926784U
Authority: JP
Inventors: 三輪　義幸
Original assignee: 三菱電機株式会社
Priority date: 1984-04-02
Filing date: 1984-04-02
Publication date: 1985-10-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は代表的な受電系統の単線図、第２図は受電し率
断器の代表的な操作回路を示す接続図、第３図は従来の
ループ切替制御回路を示す接続図、第４図はこの考案の
一実施例によるループ切替制御装置を示す接続図、第５
図はこの考案の他の実施例によるループ切替制御回路を
示す接続図である。図において、１はＮＯ，１受電線、２は歯、２受電線、
３はＮｏ、１受電しゃ断器、３ａはＮＯ，１受電しゃ断
器の常開接点、３ｂは尚、１受電しゃ断器の常閉接点、
４はＮＯ，２受電しゃ断器、４ａはＮＯ，２受電し　　
゛や断器の常開接点、４ｂはＮｏ、２受電しゃ断器の常
閉接点、５はＮＯ，１受電過電流リレー、６はＮｏ：２
受電過電流リレー、７は復帰継電器付切替スイッチ、７
ａは切替スイッチの常開接点、７ｂは切替スイッチの常
閉接点、８，９．１４は補助リレ　　ｍ−，１５は限時
継電器である。なお図中同一符号は同−又は相当部分を
示す。　　　　　−−−第３図第４図Figure 1 is a single line diagram of a typical power receiving system, Figure 2 is a connection diagram showing a typical operation circuit of a power receiving switch, Figure 3 is a connection diagram showing a conventional loop switching control circuit, and Figure 4 Figure 5 is a connection diagram showing a loop switching control device according to an embodiment of this invention.
The figure is a connection diagram showing a loop switching control circuit according to another embodiment of this invention. In the figure, 1 is NO, 1 power receiving wire, 2 is tooth, 2 power receiving wire,
3 is No, 1 power receiving breaker, 3a is NO, normally open contact of 1 power receiving breaker, 3b is normally closed contact of 1 power receiving breaker,
4 is NO, 2 power receiving breaker, 4a is NO, 2 power receiving
Normally open contact of ゛ or disconnector, 4b is No, 2 normally closed contact of power receiving breaker, 5 is NO, 1 receiving overcurrent relay, 6 is No: 2
Power receiving overcurrent relay, 7 is a changeover switch with return relay, 7
A is a normally open contact of the changeover switch, 7b is a normally closed contact of the changeover switch, 8, 9.14 are auxiliary relays, and m-, 15 are time-limited relays. Note that the same reference numerals in the figures indicate the same or equivalent parts. ---Figure 3Figure 4

Claims

[Scope of utility model registration request]

(1) In a system that performs loop switching control on a power receiving system that has two power receiving lines, one for regular use and one for backup, an automatic reset type that locks each protection circuit of each power receiving line from protection operation when a loop switching operation is performed. a loop changeover switch; when the loop changeover switch is operated to change over the loop and the power reception circuit breakers of each power reception line are turned on, the loop changeover switch operates to automatically reset the loop changeover switch and lock the protection circuit; A power receiving system switching control device characterized by being provided with a solution (auxiliary relay).

(2) The loop changeover switch is automatically reset by a time-limited relay activated by the operation of an auxiliary relay;
First scope of claim for utility model registration characterized by:
The power receiving system switching control device described in .